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    {HowTo} turn on/off your monitor (Time based, PIR/Button, App)

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    • cruunnerrC Offline
      cruunnerr @nikobelohlav
      last edited by cruunnerr

      @nikobelohlav @ninjabreadman

      Alright, i add this option to the tutorial. Hope you enjoy :)

      If there are any suggestions on the scripts i am using please tell me. I am not a programmer so it could be, that the scripts aren’t as “clean” as they could be.

      D 1 Reply Last reply Reply Quote 0
      • OdomLinxO Offline
        OdomLinx
        last edited by OdomLinx

        1. disable the HDMI port with
        vcgencmd display_power 0
        

        and enable with

        vcgencmd display_power 1
        

        Most monitors then go into standby. Some also show ‘NO Signal’.

        E 1 Reply Last reply Reply Quote 0
        • E Offline
          E3V3A @OdomLinx
          last edited by E3V3A

          @OdomLinx copy paste error?

          "Everything I do (here) is for free – altruism is the way!"
          MMM-FlightsAbove, MMM-Tabulator, MMM-Assistant (co-maintainer)

          OdomLinxO 1 Reply Last reply Reply Quote 0
          • OdomLinxO Offline
            OdomLinx @E3V3A
            last edited by

            @E3V3A Yes copy paste error, I adjusted it

            1 Reply Last reply Reply Quote 0
            • E Offline
              E3V3A
              last edited by E3V3A

              Most modern monitors also have a PowerSave function that completely turn off the monitor when there is no HDMI signal, after a set amount of time. So I guess experimentation will be needed as to what really happen after you have turned it off using either:

              1. vcgencmd display_power 0
              2. sudo tvservice -o
              3. DISPLAY=:0 xset dpms force off (Notice, it’s not necessary to export!)
              4. xset -display :0 dpms force off

              The first 2 turn off HDMI and most likely put your monitor into PowerSave mode, eventually.
              The last 2 only blanks the screen (visible when dark), and does not disable HDMI signals.

              "Everything I do (here) is for free – altruism is the way!"
              MMM-FlightsAbove, MMM-Tabulator, MMM-Assistant (co-maintainer)

              N 1 Reply Last reply Reply Quote 0
              • N Offline
                ninjabreadman @E3V3A
                last edited by ninjabreadman

                @E3V3A Some monitors, but almost all television displays turn off after delay (and then cannot be woken in software).

                That, and some folks have complained that they can’t hear a podcast or Alexa because their integrated speakers turn off when the monitor is in powersaving.

                You’re right, it takes some experimentation to tailor to a given use case/situation depending on requirements.

                Problem with config or JavaScript? Copy/paste it into JSHint.
                Check out the detailed walkthroughs on install, config, modules, etc.

                1 Reply Last reply Reply Quote 0
                • M Offline
                  MadScientist
                  last edited by

                  I would like to use the MMM-PIR-sensor module to trigger the relay to power off the LCD. However, whenever I set
                  relayPIN: 27, in the config.js, the motion detector doesn’t do anything anymore. Anyone know what else I have to change in the config? It’s working just fine without the relay.

                  Config working without relay (switches off HDMI):

                                  {
                                  module: 'MMM-PIR-Sensor',
                                  config: {
                                          sensorPIN: 22, 
                                          relayPIN: false,
                                          powerSaving: true,
                                          }
                                  },
                  

                  Not working with relay:

                                  {
                                  module: 'MMM-PIR-Sensor',
                                  config: {
                                          sensorPIN: 22,
                                          relayPIN: 27,
                                          relayOnState: 1,
                                          powerSaving: true,
                                          }
                                  },
                  

                  The problem is I am using a V59 LCD controller board which doesn’t power on again once the HDMI is re-activated.

                  1 Reply Last reply Reply Quote 0
                  • cruunnerrC Offline
                    cruunnerr
                    last edited by cruunnerr

                    1. Can u turn on GPIO27 with gpio -g write 27 1 and off with gpio -g write 27 0 ?
                    2. Have u tried just to connect a LED on GPIO27 ?
                    3. What relay do u use and how exactly is it connected? ?
                    1 Reply Last reply Reply Quote 0
                    • M Offline
                      MadScientist
                      last edited by

                      Hmm, I get

                      Unable to determine hardware version. I see: Hardware   : BCM2835
                      ,
                       - expecting BCM2708 or BCM2709. Please report this to projects@drogon.net
                      

                      when I run gpio -g write 27 1 .

                      randomnoiseR 1 Reply Last reply Reply Quote 0
                      • cruunnerrC Offline
                        cruunnerr
                        last edited by

                        @MadScientist said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):

                        Unable to determine hardware version. I see: Hardware : BCM2835

                        Huh… a quick google search tells, that this could be several causes. Some wrote to update or downgrade the kernel., some wrote to update wiring pi and so on.
                        So its not a problem of the module at all. I’m sorry but for the first u should try to google.

                        Maybe start with this: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=182191

                        However you should start a new thread if you cannot get to target :(

                        1 Reply Last reply Reply Quote 1
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